QUOTE(Socalandy @ Aug 3 2011, 07:57 PM)
thanks, I need to ask my buddy again on the re-grind of the cams. 9.8:1 + twin plug. why do you say its not warranted? you wont hurt my feelings but I'd like to hear the Six Guru's take on the subject
Mahle computes compression without taking into account the required .04 deck height.....thus the actual compression is closer to 9.3:1.(or less). The twin plug, shuffle pins, half mooning the cyls & boat tailing he block add little or nothing to the output of the engine....what, no boat tailed crank?...my money would go elsewhere......but all that makes a nice base for an 8000 rpm race motor.
Those pistons kill anything approaching a cam that scavenges well......top end down the tubes wasting those big ports. IMO, lotta bells but not many whistles. Don't forget, ...."you won't hurt my feelings".
Something like these in 95mm will solve your shortcomings.